Count Hasimir Fenring (10133 AG - 10225 AG) was a renowned assassin and political tactician, and the adviser to Emperor Shaddam Corrino IV. He was also a prominent member of House Fenring, a House Minor that had long been aligned to House Corrino. Fenring was a genetic eunuch and an almost Kwisatz Haderach.
He was a small man with oversize dark eyes and a weasel face.
After the ascent of Shaddam to the role of Padishah Emperor, Hasimir became his vital adviser, often guiding him away from foolish political decisions. During the transition of power on Arrakis between House Harkonnen and House Atreides, Fenring served as interim Governor, no doubt finalizing some of the elements that would later be instrumental in the fall of House Atreides. Between 10191 AG and 10193 AG he served as Siridar-Absentia of Caladan.